CN105844887B - A kind of 32 triple channel synchronous data collection devices with wireless self-networking function - Google Patents
A kind of 32 triple channel synchronous data collection devices with wireless self-networking function Download PDFInfo
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- CN105844887B CN105844887B CN201610343065.5A CN201610343065A CN105844887B CN 105844887 B CN105844887 B CN 105844887B CN 201610343065 A CN201610343065 A CN 201610343065A CN 105844887 B CN105844887 B CN 105844887B
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
The invention discloses a kind of 32 triple channel synchronous data collection devices with wireless self-networking function, it includes：Processor controls three 32 ADC chips ADS1282 that three tunnel analog signals are synchronized with analog/digital conversion, and transformation result is saved in document form and is connected in the USB flash disk of processor USB interface.Processor connection GPS module carries out GPS time services and positioning, and connection LCD is shown, is also connected with a ZigBee module and communicates wirelessly.Collector constitutes the network that can be interconnected by the MANET function of ZigBee module, and the monitoring software on far-end server carries out status monitoring and control by ZigBee module to the data acquisition unit in network.Collector of the invention is easy to field to dispose the synchronous acquisition and storage for carrying out triple channel signal, and remote monitoring is carried out with Wireless ad hoc networks, is adapted as micro-earthquake monitoring system and uses.
Description
Technical field
The present invention relates to data acquisition equipment field, and in particular to a kind of 32 triple channels with wireless self-networking function
Synchronous data collection device.
Background technology
When carrying out micro-seismic monitoring, several, tens, or even prison up to a hundred can be typically disposed in the range of several square kilometres
Survey station point.Field management to these monitoring stations is extremely important, if without remote wireless monitoring, it is desirable to have personnel constantly patrol
Depending on, the working condition of each collector is checked, open or stop collection.Still dealt with when website number is less and got, in website
When number is more, the workload of manual monitoring is just very big, it is difficult to effectively monitoring in time.
Conventional Microseismic data collector also has using wireless monitor, but typically uses the man-to-man communication of radio frequency
Mode, cannot interconnect between website, and communication distance is limited between points, so also can only be less in website number, website distribution
It is applicable when scope is smaller.
The content of the invention
The technical problem to be solved in the present invention is aiming at the above-mentioned actual demand to Microseismic data collector, there is provided one
Plant with wireless self-networking function, be easy to field deployment and the high-performance 32-bit triple channel synchronous data collection of remote wireless monitoring
Device.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of with wireless self-networking function 32
Position triple channel synchronous data collection device, it is characterised in that the collector includes：Processor, three 32 ADC chips, storages
Device, GPS module and ZigBee module；
Wherein, three 32 ADC chips are connected with processor, and processor controls three 32 ADC chips to simulate three tunnels
Signal synchronizes analog/digital conversion, and transformation result is saved in the memory being connected with processor with document form data；
Processor connects GPS module, and processor reads gps coordinate and gps time data and recorded every by GPS module
In the File header information of individual data file；
Processor is also connected with ZigBee module and communicates wirelessly, the MANET work(that the collector passes through ZigBee module
Can be with the collector network of other collectors composition interconnection.
Preferably, three tunnel transformation results of sampling are stored in a data point every time, and each data point includes 3 numbers
Group, each array is both provided with data o'clock sharp second flag bit, and processor is also read in data acquisition by GPS module
GPS second pulse signal, and it is per second read the GPS second pulse signal after by data of sample conversion result first in this second
The whole second flag bit of point is collectively labeled as 1, and the whole second flag bit of the data point of remaining sample conversion result is collectively labeled as 0 so that root
The mark potential energy of whole second of each data point is calculated and is somebody's turn to do in the gps time recorded according to the file header of each data file and the data file
The precise time of each data point in data file.
Preferably, 32 ADC chips are ADS1282.
Preferably, connected by three simulating SPI by software interfaces between processor and three ADS1282 chips, but altogether
SPI clock cables are used, triple channel synchronous data collection is realized by the parallel work-flow to three SPI interfaces.
Preferably, the collector also includes：Start/stop key, test button and LCD；Wherein, processor connects respectively
Connect and start/stop key, test button and LCD；Start/stop key for starting or stopping data acquisition；Test button is used
In the waveform for showing three tunnel analog signals in real time on LCD, whether the working sensor for testing the analog signal source is normal.
Preferably, the memory is USB flash disk.
Preferably, the monitoring software on far-end server accesses the collector network by ZigBee module, with each
Collector is communicated, and the state of each collector is monitored and controlled.
Beneficial effects of the present invention are：Collector connects three ADS1282 chips, by three ADS1282 chips
The synchronous acquisition of three road signals is realized in parallel work-flow.Collector reads gps coordinate and time and recorded file by GPS module
Obtained in header, in collection and GPS second pulse marking signal and merged with gathered data point, precise marking each data point when
Between information.Collector constitutes ad hoc network by ZigBee module, can be with trunk interconnection between website, arbitrarily extensible website
Number and deployment scope.Server end accesses the ZigBee-network of collector, and the state of each website can be entered by software
Row remote monitoring.The data of collector collection are saved in USB flash disk with document form, and wireless sensor network is only acquired device shape
State is monitored, and such system is easy to field to dispose, is easy to the monitor in real time of collector status.
Brief description of the drawings
Fig. 1 is the structure chart of collector of the invention.
Fig. 2 is the connection diagram of three ADS1282 chips of the invention and GPS module and processor.
Fig. 3 is that three SPI interfaces of the invention read in a byte data to the sequential logic schematic diagram of processor.
Fig. 4 is that three SPI interfaces of the invention read in a program flow diagram for byte data parallel.
Fig. 5 is GPS module pps pulse per second signal of the invention, ADS1282 converts marking signal and the data point whole second marks
Will position schematic diagram.
Fig. 6 is that the processing stream for completing the reading of ADC transformation results and GPS second pulse labeling is interrupted using INT0 interruptions and INT1
Cheng Tu.
Fig. 7 is the ad hoc network schematic diagram of multiple collectors of the invention and monitoring computer composition.
Fig. 8 is that ZigBee module of the invention receives instruction explanation perform function figure.
Specific embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art can be with
It is better understood from the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
In view of the website number that micro-seismic monitoring requirement is used is more and more, even up to more than 100, up to a hundred stations
The deployment and control of point must use advanced wireless network communication technology.ZigBee-network is a kind of with MANET function
Wireless network, can interconnect between adjacent node, and data transfer can be with automatic relay, and scene is particularly suitable for without any setting
In the deployment of field micro-earthquake monitoring system.
Microseism signal is typically fainter, and the out-put dynamic range of seismic sensor it requires that data are adopted than larger
The circuit noise of storage is very low, and the dynamic range of ADC is than larger.At present, what general seismic signal collector was used
It is 24 ADC devices.The present invention uses 32 ADC chips ADS1282 of peak performance.ADS1282 chip internals are integrated with can
Programming gain amplifier（PGA）, 32 analog/digital converter and digital filters, seismic signal is designed based on ADS1282
Collector has integrated level and circuit performance higher.
Present micro-seismic monitoring typically requires to use 3-component earthquake detector, to obtain complete wave field information.Three
Component geophones have three road analog output signals, and this three roads signal must synchronously be simulated/numeral conversion, each to ensure
Road signal acquisition is without the time difference.
ZigBee-network communication speed than relatively low, the data volume that 3-component earthquake signal acquisition is produced than larger, particularly
When website number reaches tens or up to a hundred, it is impossible to realize being transmitted in collection by ZigBee-network.So, collector is necessary
There are the memories such as USB flash disk, for data to be locally stored, and wireless network is only used for the condition monitoring of collector, or in collector not
File transmission is carried out when data conversion is carried out.
Reference picture 1, a kind of 32 triple channel synchronous data collection devices with wireless self-networking function of the present invention it is basic
Structure.The DC input voitage of 7 ~ 9V is converted to the burning voltages such as+5.0V ,+3.3V ,+2.5V, -2.5V by power circuit, power supply
Road plate other each chips are used.Three 32 ADC chips ADS1282 are connected with processor, and each ADS1282 chip can be connected
Differential analog input signal all the way, processor controls three ADS1282 to synchronize three tunnel analog signals analog/digital to turn
Change, transformation result is saved in document form and is connected in the USB flash disk of processor USB interface.Processor connection GPS module is carried out
GPS time services and positioning, the gps coordinate and gps time data of reading write the file header of each file.The LCD of processor connection
For presentation of information, three operation buttons on collector can control to start or stop collection, three road signals are acquired
Test.Processor connects a ZigBee module and communicates wirelessly.The MANET work(that data acquisition unit passes through ZigBee module
The network that can be interconnected can be constituted, the monitoring software on far-end server is by ZigBee-network to the data acquisition unit in network
Carry out status monitoring and control.
Fig. 2 is the connection diagram of three ADS1282 chips of the invention and GPS module and processor.Each ADS1282
3 I/O ports that chip has 3 control inputs holding wire ADC_PWDN, ADC_RST, ADC_SYNC, processor export these three letters
Number line, and connected with three identical holding wires of ADS1282；Each ADS1282 has an output signal line ADC_DRDY, complete
The upper skip signal of output represents and converts that three ADC_DRDY signals of ADS1282 access one three when being changed into an ADC
Line wire jumper, only selection accesses the input signal cable ADC_ReadyIRQ of processor all the way, used as external interrupt signal source INT0；
The data-interface of ADS1282 is SPI interface, and the SPI_CLK of processor is used as SPI interface clock signal, while connecting three
ADS1282, processor simulates three inputoutput data lines of SPI with 6 I/O ports, respectively with three SPI interfaces of ADS1282
Data wire is connected.6 I/O ports for being used for SPI interface data manipulation on processor must, with a port, such as PA mouthfuls, be used for
Realize three parallel work-flows of SPI interface.Data communication is carried out by UART mouthfuls between GPS module and processor, GPS module has
One pulse per second (PPS) output signal GPS_TimeIRQ, at the time point of each whole second, GPS_TimeIRQ can export a upper jump edge
Pulse signal, the signal access processor, as an external interrupt signal source INT1.
Fig. 3 is that three SPI interfaces of the invention read in a byte data to the sequential logic schematic diagram of processor.Three
The SO of SPI（Salve output）Data wire is all linked on the same port of processor, for example PA3=X_SO, PA1=Y_
SO, PA6=Z_SO, define byte type array IN [8], within the clock cycle of SPI_CLK, read in one time PA mouthfuls
Data, and with shielding data（It is 0x4A that three SO lines are corresponding as shown in the figure）Carry out with operation, be saved in array IN.This
Sample, within a SPI clock cycle, has just read in three bit datas of SPI port, in 8 SPI_CLK cycles simultaneously
It is interior, it is possible to read three SPI port byte datas.
Fig. 4 is that three SPI interfaces read in a program flow diagram for byte data parallel.Be first 8 SPI_CLK weeks
Three input datas of SPI port are read in phase parallel, is stored in array IN, then, then to IN [0] to IN [7] storages
Data are serially parsed, and obtain a data for byte of each SPI interface input.For example in Fig. 3, the one of ADC_X inputs
Individual byte data is 0xA6, and a byte data of ADC_Y inputs is 0x6B, and a byte data of ADC_Z inputs is
0x99。
Fig. 5 is GPS module pps pulse per second signal of the invention, ADS1282 converts marking signal and the data point whole second marks
Will position schematic diagram.GPS module has a pps pulse per second signal output pin, and the pin sends on one in each whole time second and jumps
Along signal, for example 13 points 04 second 23 minutes, the time precision of pps pulse per second signal is 10ns, such that it is able to be demarcated as precise time
Signal.After pulse per second (PPS) sends jump along signal, the serial ports of GPS starts to export GPS character strings.Using this pps pulse per second signal as treatment
The external interrupt INT1 of device, and jumped along triggering upper.After programme-control ADS1282 starts conversion, in the 1st second arteries and veins of INT1
Upper jump when punching is interrupted by ADC_SYNC pins carries out timing synchronization along output to three ADS1282.Convert signal
（ADC_DRDY）Complete to be issued by jumping along signal after an ADC is changed every, change data read with notifier processes device in time,
This signal is connect the external interrupt INT0 of processor, and is jumped along triggering upper.The triggering cycle of ADC_DRDY and adopting for ADS1282
Sample frequency is relevant, and such as ADS1282 sample frequencys are 1000Hz, then the ADC_DRDY triggering cycles are 1ms（It is in sample frequency
In the case of 1000Hz, per 1ms, sampling once, produces a sampled point）.Three tunnel transformation results of sampling are storable in one every time
In data point, each data point includes 3 arrays, and each array is both provided with data o'clock sharp second flag bit.The interruption of INT0
Interrupt priority level of the priority higher than INT1, by INT0 and INT1 interrupt handling routines, reads after GPS second pulse-break
The whole second flag bit of the 1st data point is set to 1, and the whole second flag bit of other time data points is set to 0, and data are realized with this
The time mark of point.
Fig. 6 is that the processing stream for completing the reading of ADC transformation results and GPS second pulse labeling is interrupted using INT0 interruptions and INT1
Cheng Tu.In GPS second pulse-break INT1 processing routines, global variable GPS_TB is set to 1 when interrupting every time, represents firm
Rigid connection have received pps pulse per second signal.It is parallel from SPI port in time in the processing routine that ADS1282 converts interrupt INT 0
Read in 3 converting result datas of ADS1282, and it is inner to be stored in three bytes type array X [4], Y [4], Z [4] respectively（Setting X
[0] it is highest bit byte, X [3] is minimum bit byte）.Judge whether global variable GPS_TB is 1 again, if GPS_TB is 1,
The extreme lower position of X [3], Y [3], Z [3] is then set to 0 for 1 and by global variable GPS_TB, otherwise by X [3], Y [3], Z [3]
Extreme lower position be 0, then the content of X, Y, Z array is saved in buffering area successively.After one buffering area is filled with, just preserve
To in file, in this way, each data point has just carried time mark, the gps time and data point that can be recorded according to file header
Whole second flag bit, calculate the time of each data point in file, and check whether data sampling accurate.
Fig. 7 is the ad hoc network schematic diagram of multiple collectors of the invention and monitoring computer composition.On each collector
There is a ZigBee module, ZigBee module is connected by UART interface with processor, the ZigBee module one of collector is well matched
Route point is set to, route point can be interconnected with MANET.One ZigBee-network can only have a focal point, and monitoring computer is by having
Line connects a ZigBee telegon, so as to realize wireless telecommunications with all collectors in ZigBee-network.Each ZigBee
Module has unique 64 ID, and monitoring computer sends instruction and must specify its 64 ID to certain collector, so, monitoring
Computer can monitor each specific collector.64 special ID can also be specified mass-sending, example is realized when instruction is sent
Such as, all collectors of mass-sending control start collection.
Fig. 8 is that collector of the invention explains perform function figure after ZigBee module receives instruction.Monitoring computer
On monitoring software sent to collector and instruct, the basic format of instruction is " # types letter:Parameter 1;Parameter 2;", i.e., with " # "
Start, followed by a letter as instruction type, then with one "：", be followed by order parameter, if having multiple parameters with ";”
Separate, last character be ";", instruction is terminated with hexadecimal number 0D0A.Such as instruction " #A:0;" represent to inquire about website
Numbering, " #B:0 " representing will inquire about GPS character strings.Collector is interrupted by the reception of the UART being connected with ZigBee module and received
To after a complete instruction, instruction type and order parameter are extracted, corresponding behaviour is then made according to instruction type and parameter
Make and respond.
The present invention simulates three SPI interfaces using software, and three ADS1282 of control carry out 32 to three tunnel analog signals together
Step ADC conversions, and time mark is carried out to gathered data point using GPS second pulse signal, during the GPS recorded by file header
Between realize each data point time Accurate Estimation.Each collector of the invention has a ZigBee module, multiple collectors it
Between can interconnect composition one Mesh network.On-site supervision computer accesses the ZigBee of multiple collectors by ZigBee routers
Network, can carry out remote monitoring to each collector.The present invention both realized the bit synchronization of high performance triple channel 32 collection with
Storage, and with ZigBee-network, it is easy to deployment and operation under wild environment, it is particularly suitable for the wireless group under wild environment
Net micro-seismic monitoring.
Embodiment described above is only the preferred embodiment lifted to absolutely prove the present invention, protection model of the invention
Enclose not limited to this.Equivalent substitute or conversion that those skilled in the art are made on the basis of the present invention, in the present invention
Protection domain within.Protection scope of the present invention is defined by claims.
Claims (6)
1. a kind of 32 triple channel synchronous data collection devices with wireless self-networking function, it is characterised in that the collector
Including：Processor, three 32 ADC chips, memory, GPS module and ZigBee modules；
Wherein, three 32 ADC chips are connected with processor, and processor controls three 32 ADC chips to three tunnel analog signals
Analog/digital conversion is synchronized, transformation result is saved in the memory being connected with processor with document form data；
Processor connects GPS module, and processor reads gps coordinate and gps time data and recorded every number by GPS module
According in the File header information of file；
Processor is also connected with ZigBee module and communicates wirelessly, the collector by the MANET function of ZigBee module with
The collector network of other collectors composition interconnection；
Three tunnel transformation results of sampling are stored in a data point every time, and each data point includes 3 arrays, each array
Data o'clock sharp second flag bit is both provided with, processor also reads GPS second pulse in data acquisition by GPS module to be believed
Number, and it is per second read the GPS second pulse signal after by this second first the data point of sample conversion result the whole second mark
Will position is collectively labeled as 1, and the whole second flag bit of the data point of remaining sample conversion result is collectively labeled as 0 so that according to each data
The mark potential energy of whole second of each data point is calculated in the data file in the gps time and the data file of the file header record of file
The precise time of each data point.
2. a kind of 32 triple channel synchronous data collection devices with wireless self-networking function according to claim 1, its
It is characterised by, 32 ADC chips are ADS1282.
3. a kind of 32 triple channel synchronous data collection devices with wireless self-networking function according to claim 2, its
It is characterised by, when being connected by three simulating SPI by software interfaces between processor and three ADS1282 chips, but sharing SPI
Clock holding wire, triple channel synchronous data collection is realized by the parallel work-flow to three SPI interfaces.
4. a kind of 32 triple channel synchronous data collection devices with wireless self-networking function according to claim 1, its
It is characterised by, the collector also includes：Start/stop key, test button and LCD；
Wherein, processor connects and starts/stop key, tests button and LCD respectively；
Start/stop key for starting or stopping data acquisition；
Test button is used on LCD the waveform of three tunnel analog signals of display in real time, tests the sensing in the analog signal source
Whether device work is normal.
5. a kind of 32 triple channel synchronous data collection devices with wireless self-networking function according to claim 1, its
It is characterised by, the memory is USB flash disk.
6. a kind of 32 triple channels with wireless self-networking function according to any claim in claim 1-5 are same
Step data collector, it is characterised in that the monitoring software on far-end server accesses the collector net by ZigBee module
Network, is communicated with each collector, and the state of each collector is monitored and controlled.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610265338 | 2016-04-26 | ||
| CN2016102653389 | 2016-04-26 |
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| CN105844887A CN105844887A (en) | 2016-08-10 |
| CN105844887B true CN105844887B (en) | 2017-06-23 |
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| CN201610343065.5A Expired - Fee Related CN105844887B (en) | 2016-04-26 | 2016-05-20 | A kind of 32 triple channel synchronous data collection devices with wireless self-networking function |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205788714U (en) * | 2016-04-26 | 2016-12-07 | 中国石油大学(华东) | A kind of 32 triple channel synchronous data collection devices with wireless self-networking function |
| CN106802429B (en) * | 2017-03-14 | 2018-09-14 | 朱培民 | A kind of quasi real time untethered network seismic detector system based on super wideband wireless module |
| CN106933160A (en) * | 2017-04-24 | 2017-07-07 | 卓雅创景能源科技（天津）有限公司 | A kind of universal electric power carrier wave concentrated collection device |
| CN107831534A (en) * | 2017-12-15 | 2018-03-23 | 合肥国为电子有限公司 | Untethered memory-type seismic detector data acquisition device and method based on USB flash disk interaction |
| CN108827453B (en) * | 2018-04-25 | 2024-04-30 | 南京航空航天大学 | Vibration signal acquisition system and method for distributed wireless synchronous networking |
| CN111157784B (en) * | 2019-12-31 | 2022-08-19 | 浙江华云信息科技有限公司 | Multi-loop electric measurement synchronous sampling device and sampling method thereof |
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| CN205788714U (en) | 2016-12-07 |
| CN105844887A (en) | 2016-08-10 |
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